Atascadero is located close to the center of California. Atascadero is part of San Luis Obispo County. Atascadero has 25.64 square miles of land area and 0.49 square miles of water area. As of 2010-2014, the total Atascadero population is 28,792, which has grown 9.02% since 2000. The population growth rate is lower than the state average rate of 12.39% and is lower than the national average rate of 11.61%. Atascadero median household income is $66,342 in 2010-2014 and has grown by 36.16% since 2000. The income growth rate is higher than the state average rate of 29.47% and is higher than the national average rate of 27.36%. Atascadero median house value is $380,000 in 2010-2014 and has grown by 88.49% since 2000. The house value growth rate is higher than the state average rate of 75.60% and is much higher than the national average rate of 46.91%. As a reference, the national Consumer Price Index (CPI) inflation rate for the same period is 26.63%. On average, the public school district that covers Atascadero is better than the state average in quality. The Atascadero area code is 805.